First look images have today been released of Ellie White (Cathy), Lauren Socha (Cat), Christopher Jeffers (Callum), Siobhan Finneran (Marilyn), Rebecca Front (Tess), Michele Austin (Angela) and guest star Caroline Quentin (Auntie Dawn).

Created and directed by award-winning comedian Holly Walsh (creator of The Other One series one, Motherland), who co-writes and executive produces the series with Pippa Brown (The Other One series one, Psychobitches), The Other One follows a girl called Catherine Walcott and another girl called Catherine Walcott - sisters who had no idea the other existed until their father dropped dead.

Series two sees further Walcotts emerging from the woodwork, with Cathy Walcott (Ellie White) and sister Cat Walcott (Lauren Socha) reeling from the news they have a brother called Callum (Christopher Jeffers). And that Cathy got off with him.

Meanwhile, Tess (Rebecca Front) and Marilyn (Siobhan Finneran) find themselves babysitting Callum’s mum Angela (Michele Austin) when she’s thrown out of her house by her shocked husband. Marilyn is suspicious of the new arrival, but Tess is too busy making extravagant plans for spending her inheritance to care.

Elsewhere, guest star Caroline Quentin returns as over-the-top Auntie Dawn and Cathy’s ex-fiance Marcus (Amit Shah) is continuing to loiter.

A comedy about what happens when you discover your dead dad has a secret family, The Other One is a love letter to siblings, mothers, and crap dads.

The Other One is a Tiger Aspect Comedy (part of Banijay UK) production for the BBC, created and directed by Holly Walsh, who also co-writes the series with Pippa Brown. Executive Producers are Simon Wilson, Holly Walsh and Pippa Brown, and the producer is Caroline Norris. The Commissioning Editor for the BBC is Ben Caudell.